Paper-trimmer.



J. G. BRECKENRIDGE. PAPER TRIMMER.

APPLICATION FILED my 23, 1901.

908,540. Patented Jan. 5, 1909.

UNITED STATES PATENT OFFICE.

JOHN G. BRECKENRIDGE, OF SPRINGFIELD, OHIO. ASSIGNOH TO THIS HIDGELY TRIMMER COM IANY, OF SPRINGFIELD, OIIIO, A CORPORATION OF WEST VIRGINIA.

PAPE R-TRIMMER.

Specification of Letters Patent.

Patented Jan. 5, 1909.

Application filed May 23, 1907. Serial No. 375,216.

T 0 all whom 'it may concern:

RIDGE, a citizen of the United States, residing at Sprmgfield, in the county of Clark and State of 01110, have invented certain I constitutes the guide which extends within Be it known that 1, JOHN G. )IRECKEN- t the groove. (i for guiding the caslng, as

hereinbefore explained.

new and useful .lu'iprovements in laper-.

Trimmers, of which the following is a specification.

My invention relates to paper trinnners. It is particularly adapted to the combination of a paper cutter with a straightedge generally used therewith, and my object is to construct the device so that the connection liietween the paper trimmer and the straight edge will be improved. It is customary to use the paper cutter with the straight edge placed horizontally and also with the straight edge placed vertically, and my improved device is one that is adapted to insure a more satisfactory operation when the paper cutter is subjected to these iliiferent uses.

Referring to the accompanying drawings, Figure l is a side view of the paper trimmer in position on the straight edge. Fig. 2 is a view taken from the opposite side from that shown in Fig. 1. Fig. 3 is an end view looking toward the right in Fig. 1. Fig. 4 is a detail view of the part known as the gage. Fig. 5 is a detail view of the anti-friction roller.

Like letters of reference indicate like parts throughout the several views.

In the drawings, the straight-edge is indicated by a. It is formed with the usual groove or guide, a (See Figs. 2 and 3.) The gage, a is formed with the usual bearings, a which project outwardly and engage in the groove, a, formed in the straight edge, and the trimmer is held against tipping movement by reason of this engagement. The casing or head, a, is formed with a hub like portion, o and the arbor for the disk or blade, a", is supported within this portion in the usual manner, as clearly set forth and described in Letters- Patent No. 533,375, issued to Chas. T. Ridgely. The casing. (1 is pivotally secured to the gabe, a, and the guide, a, (Fig. 1) is for guiding the casing, a, during its up and down movement. The pivotscrew, a, forms the pivotal connection between the casing and gage, and the screw, a

The anti friction roller, (1", projects from the extension of the raising. a". and this roller engages the fiat upper surface of the straight edge, as indicated in Figs. and 3. There is the usual spring connection, a, between the casing and gage, and I have shown this spring supported on the gage, one end projecting against the surface of the gage and the other end projecting against the surface formed on the casing, as shown clearly in Fig. 2.

From this construction it is apparent that when the paper cutter is placed on the straight edge, the spring, a), normally exerts its tension to force the roller, a, in frictional engagement with the flat surface of the straight edge, but when the operator, by exerting the pressure of the hand on the handle, a, depresses the casing, (2, against the tension of the spring, (0", the casing will have a pivotal movement on the pivot, a, and thereby the roller. a, will be elevated from frictional engagement with the flat surface of the straight edge, and in operation the paper cutter will be manipulated free of any frictional engagement at that point. But when the operator removes his hand from the paper cutter, the roller, a", will automatically engage the upper surface of the straight edge, and if the straight edge is in vertical position the gravity or weight of the paper cutter will not cause it to fall off of the straight edge but the parts will remain in their proper adjusted position.

Having thus described my invention, I claim 1. In a paper trimmer, the combination of a gage with a straight edge supporting same, a casing pivotally connected to the gage, a disk supported by the casing, and a projection normally engaging the straight edge and means for auton'iatically releasing the projection from the engagement with the straight edge, substantially as specified.

2. In a paper trimmer, the combination of a gage with a straight edge supporting the gage, a casing yieldingly connected with the gage, and a projection engaging the straight edge and automatically released therefrom by the depression of the casing.

3. In a paper trimmer, the combination roller from engagement by the depressing of of a straight edge, with a gage slidingly the casing, substantially as specified. 10 supported therein, a casing, a spring con- In testimony whereof, I have hereunto set nection between the casing and the gage, an my hand this 21st day of May 1907. tllltl-fliCtlOll roller normally engaging the JOHN G. BRECKENRIDGE. straight edge and held in engagement there- \Yitnesses:

on by the spring connection, and means for CHAS. I. \VELOH, automatically releasing the anti-friction CLARA GALLAGHER. 

